Golikov V. The improvement of methods of choice of economically favourable and safe marine ways

Thesis is devoted to the relevant problem of a vessel's management efficiency increasing by ways of minimization of power losses and financial expenses during the ocean carriage. This was achieved due to the improvement of a principle, development and realization of the methods of optimization of planning and re-planning of a vessel's course by means of admissible reduction of a distance and reduction of resistance of external forces on a route of movement. This work offers new more purposeful method of determination of an economic efficiency index of a vessel's transition which is the main thing in an estimation of quality of transport process, taking into consideration the factors of power and technical opportunities of a vessel and the basic perturbing factors - resistance of external forces of a shipping lane. The internal factors of a transport efficiency of work of a vessel are presented by dimensionless coefficients: freight efficiency, technical improvement and technical condition which are defined by constructional, high-speed, screw characteristics and the characteristic of a friction resistance of the ship hull. External factors of a transport efficiency of work of a vessel are presented for the modes of movement with the following constants: velocity, capacity and work which are presented by specific coefficients of perturbing forces resistance of an environment on a shipping lane: wind, heaving, currents, shallow water, deviation (drift, driftway, by-pass, divergence, etc.). The system and methods have been worked out to define the criteria of work of a vessel to create safe nautical conditions. The results of researches have been implemented on the bulk carrier "Nena J" of a Greek company FAIRSKY with economic effect amounted 37500 USD a year, and Well L.T.D. with economic effect amounted 160000 hryvna.